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CVE-2026-16396 Privilege escalation in WebExtensions

🗓️ 21 Jul 2026 12:38:09Reported by mozillaType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

CVE-2026-16396 describes a privilege escalation in WebExtensions, fixed in Firefox 153 and ESR 140.13.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-16396
21 Jul 202612:38
attackerkb
CVE
CVE-2026-16396
21 Jul 202612:38
cve
EUVD
EUVD-2026-46234
21 Jul 202612:38
euvd
NVD
CVE-2026-16396
21 Jul 202613:17
nvd
Positive Technologies
PT-2026-61908
21 Jul 202600:00
ptsecurity
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "140.13",
        "lessThanOrEqual": "140.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "153",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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